What element should accompany all images to support accessibility?

• A. A long caption
• B. A link to the image source
• C. No caption needed
• D. Alternative text describing the image content

Answer: (D)

Providing alternative text for images is essential for accessibility. Screen readers rely on this text to convey what the image shows or its function to users who cannot see the image, helping them understand the content and stay oriented in the page. A brief, descriptive alt text that captures the image’s main purpose or content is ideal so the user can follow along without needing to see the image. If an image is purely decorative and adds no information, the alt attribute can be left empty to avoid unnecessary narration by assistive tech. While captions can offer helpful context for sighted users, they aren’t read aloud in the same way by screen readers, so alt text remains the reliable method to ensure the image is accessible.